Book contents
- Chemical Production Scheduling
- Cambridge Series in Chemical Engineering
- Chemical Production Scheduling
- Copyright page
- Dedication
- Contents
- Preface
- Part I Background
- Part II Basic Methods
- 3 Single-Unit Environment
- 4 Single-Stage Environment
- 5 Multistage Environment
- 6 Multipurpose Environment
- 7 Network Environment: Basics
- Part III Advanced Methods
- Part IV Special Topics
- Index
- References
7 - Network Environment: Basics
from Part II - Basic Methods
Published online by Cambridge University Press: 01 May 2021
- Chemical Production Scheduling
- Cambridge Series in Chemical Engineering
- Chemical Production Scheduling
- Copyright page
- Dedication
- Contents
- Preface
- Part I Background
- Part II Basic Methods
- 3 Single-Unit Environment
- 4 Single-Stage Environment
- 5 Multistage Environment
- 6 Multipurpose Environment
- 7 Network Environment: Basics
- Part III Advanced Methods
- Part IV Special Topics
- Index
- References
Summary
In this chapter, we discuss scheduling in network environments that are unique in the process industries. We study the basic features of this class of problems, including tasks consuming and producing multiple materials, shared utilities, and time-varying utility cost and capacity. In the next chapter, we will consider additional features, including material consumption and production during batch execution, material transfer activities, and unit deterioration. Problems in sequential environments can be expressed using the traditional representation based on batches (orders), stages (operations), and units (machines). This representation is insufficient for problems in network environments. Thus, we start in Section 7.1 with two frameworks, the so-called state-task network (STN) and resource-task network (RTN), for problem representation and the corresponding problem statements. In Section 7.2, we present two models based on a common discrete time grid, and in Section 7.3 we present a model based on a common continuous time grid.
Keywords
- Type
- Chapter
- Information
- Chemical Production SchedulingMixed-Integer Programming Models and Methods, pp. 157 - 190Publisher: Cambridge University PressPrint publication year: 2021